Micromechanical Characterisation of Microstructure in Weld Heat Affected Zone of Structural Steel

Yusuke Shimada; Yoichi Kayamori; Shohei Nishida; Mitsuhiro Matsuda; Kazuki Takashima

doi:10.4028/www.scientific.net/KEM.525-526.585

Paper Titles

Electro-Mechanical Impedance Technique for Structural Health Monitoring of Composite Panels
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Dynamic Response Analysis of Lining Structure with Primary Defects for Tunnel under Moving Train Loading
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Monitoring Analysis of Tunnel Construction in a New Subway Line Down-Through an Existed Line
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SMART Platform for Structural Health Monitoring of Sensorised Stiffened Composite Panels
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Micromechanical Characterisation of Microstructure in Weld Heat Affected Zone of Structural Steel
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Two Scale-Based Continuum Damage Model for Brittle Materials under Thermomechanical Loading
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The Applicability Study on the FRP-Concrete Composite Bridge Deck for Cable-Stayed Bridges
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Improvement of Fatigue Crack Growth Behavior in the Case of the Cracked Specimen with Relatively Narrow Width
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Dynamic Crack Problems Using Meshless Method
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Micromechanical Characterisation of Microstructure in Weld Heat Affected Zone of Structural Steel

Abstract:

Microstructures in the weld heat affected zone (HAZ) can cause a decrease in fracture toughness, and evaluating the effect of microstructures on fracture toughness is helpful in understanding the cause of the fracture toughness decrease. In this study, micro-sized tensile specimens were sampled from base metal and HAZ, and the mechanical properties and fracture behaviours of different steel microstructures were directly investigated by micro-sized mechanical testing.